CN109720377B - A method for adjusting alarm limit value of track circuit - Google Patents
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Abstract
本发明提供了一种轨道电路报警限值调整方法，包括以下步骤：所述监测模块实时采集并存储车站内各个轨道的主轨电压值；若实时采集到的主轨电压值的下降幅度在预设范围内，且车站的主轨电压下降的时间小于预设时间值m；则所述控制单元判定车站的主轨电压为下降状态；若车站的主轨电压下降的轨道数目占车站总轨道数目的比例大于预设百分比，所述控制单元则判定车站轨道电路的主轨电压报警进入雨天模式，将主轨电压的报警限值调整为雨天限值；否则，所述控制单元则判定车站轨道电路的主轨电压报警进入正常模式，将主轨电压的报警限值调整为正常限值。本发明具有设计科学、实用性强和减少误报警的优点。
The invention provides a method for adjusting the alarm limit value of a track circuit, comprising the following steps: the monitoring module collects and stores the main rail voltage value of each track in the station in real time; within the set range, and the time for the voltage drop of the main rail of the station is less than the preset time value m; the control unit determines that the voltage of the main rail of the station is in a falling state; if the number of rails where the voltage of the main rail of the station drops accounts for the total number of rails in the station If the ratio is greater than the preset percentage, the control unit determines that the main rail voltage alarm of the station track circuit enters the rainy weather mode, and adjusts the alarm limit of the main rail voltage to the rainy weather limit; otherwise, the control unit determines that the station track circuit The main rail voltage alarm enters the normal mode, and the alarm limit of the main rail voltage is adjusted to the normal limit. The invention has the advantages of scientific design, strong practicability and reduction of false alarms.
Description
技术领域technical field
本发明涉及报警限值调整技术领域，具体的说，涉及了一种轨道电路报警限值调整方法。The invention relates to the technical field of alarm limit adjustment, in particular to a method for adjusting the alarm limit of a track circuit.
背景技术Background technique
轨道电路在铁路中起着保证行车和调车作业安全的作用，轨道电路报警是铁路维护人员需要处理的重要报警。轨道电路电气特性超限报警是轨道电路中一种常见的报警，报警的原理是：假设某个轨道在正常情况下的电压值是200mv到250mv，如果微机监测系统测试到的电压值超出这一范围，则系统会产生一个电气特性超限报警，提醒维护人员及时处理问题排除安全隐患。Track circuit plays a role in ensuring the safety of running and shunting operations in railways. Track circuit alarm is an important alarm that railway maintenance personnel need to deal with. Track circuit electrical characteristics overrun alarm is a common alarm in track circuit. The principle of the alarm is: Assuming that the voltage value of a track under normal conditions is 200mv to 250mv, if the voltage value tested by the microcomputer monitoring system exceeds this value range, the system will generate an electrical characteristic over-limit alarm to remind maintenance personnel to deal with the problem in time to eliminate potential safety hazards.
但是，在雨天轨道受潮或者水浸时，轨道电气特性发生变化，此时轨道电路的正常电压可能会降到180mv到230mv，由于雨天时轨道电气特性变化的区段可能很多，因此微机监测系统会产生大量电气特性超限报警，导致以下两个问题：However, when the track is damp or flooded in rainy days, the electrical characteristics of the track will change, and the normal voltage of the track circuit may drop to 180mv to 230mv. Since there may be many sections where the electrical characteristics of the track change in rainy days, the microcomputer monitoring system will A large number of out-of-limit alarms for electrical characteristics are generated, resulting in the following two problems:
（1）报警数目太多，铁路维护人员需要大量工作来消除这些报警；(1) There are too many alarms, and railway maintenance personnel need a lot of work to eliminate these alarms;
（2）报警数目太多，此时系统产生的其他报警被淹没，维护人员不能及时发现其他真正有意义的报警。(2) There are too many alarms, and other alarms generated by the system are submerged at this time, and maintenance personnel cannot find other truly meaningful alarms in time.
为了解决以上存在的问题，人们一直在寻求一种理想的技术解决方案。In order to solve the above problems, people have been looking for an ideal technical solution.
发明内容SUMMARY OF THE INVENTION
本发明的目的是针对现有技术的不足，从而提供一种轨道电路报警限值调整方法。The purpose of the present invention is to provide a method for adjusting the alarm limit value of a track circuit aiming at the deficiencies of the prior art.
为了实现上述目的，本发明所采用的技术方案是：一种轨道电路报警限值调整方法，设置监测模块和控制单元，包括以下步骤：In order to achieve the above-mentioned purpose, the technical solution adopted in the present invention is: a method for adjusting the alarm limit value of a track circuit, setting a monitoring module and a control unit, comprising the following steps:
所述监测模块实时采集并存储车站内各个轨道的主轨电压值；The monitoring module collects and stores the main rail voltage value of each track in the station in real time;
若实时采集到的主轨电压值的下降幅度在预设范围内，且车站的主轨电压下降的时间小于预设时间值m；则所述控制单元判定车站的主轨电压为下降状态；If the drop range of the main rail voltage value collected in real time is within the preset range, and the time for the main rail voltage to drop at the station is less than the preset time value m; then the control unit determines that the main rail voltage of the station is in a falling state;
若车站的主轨电压下降的轨道数目占车站总轨道数目的比例大于预设百分比，所述控制单元则判定车站轨道电路的主轨电压报警进入雨天模式，将主轨电压的报警限值调整为雨天限值；If the ratio of the number of rails whose main rail voltage drops in the station to the total number of rails in the station is greater than the preset percentage, the control unit determines that the main rail voltage alarm of the station rail circuit has entered the rain mode, and adjusts the alarm limit of the main rail voltage to Rain limit;
否则，所述控制单元则判定车站轨道电路的主轨电压报警进入正常模式，将主轨电压的报警限值调整为正常限值。Otherwise, the control unit determines that the main rail voltage alarm of the station track circuit enters the normal mode, and adjusts the alarm limit of the main rail voltage to the normal limit.
基于上述，所述控制单元判定车站的主轨电压为下降状态的具体步骤包括：Based on the above, the specific steps for the control unit to determine that the main rail voltage of the station is in a falling state include:
步骤1，遍历车站内所有轨道电路的主轨电压值，读取所述主轨电压值从当前时刻至前n分钟的数据；Step 1, traverse the main rail voltage values of all track circuits in the station, and read the data of the main rail voltage values from the current time to the previous n minutes;
步骤2，所述控制单元对从当前时刻至前n分钟的数据求取平均值，获得第一平均值；将预设正常值与所述第一平均值的差值除以所述预设正常值，获得第一下降幅度；Step 2, the control unit averages the data from the current time to the previous n minutes to obtain a first average value; divides the difference between the preset normal value and the first average value by the preset normal value. value, get the first drop rate;
1分钟之后，再次对从当前时刻至前n分钟的数据求取平均值，获得第二平均值；将预设正常值与所述第二平均值的差值除以所述预设正常值，获得第二下降幅度；After 1 minute, average the data from the current time to the previous n minutes to obtain a second average value; divide the difference between the preset normal value and the second average value by the preset normal value, get a second drop;
以此类推，获得第三下降幅度、第四下降幅度和第五下降幅度；By analogy, the third, fourth, and fifth declines are obtained;
步骤3，若所述第一下降幅度、所述第二下降幅度、所述第三下降幅度、所述第四下降幅度和所述第五下降幅度，均在预设范围内且依次增大；Step 3, if the first drop range, the second drop range, the third drop range, the fourth drop range, and the fifth drop range are all within a preset range and increase sequentially;
同时，所述第一平均值与第五平均值的差值除以所述第五平均值的值为0.2至0.3；Meanwhile, the difference between the first average value and the fifth average value divided by the fifth average value is 0.2 to 0.3;
则所述控制单元判定车站处于下雨或者水浸状态，主轨电压为下降状态。Then the control unit determines that the station is in a raining or flooding state, and the main rail voltage is in a falling state.
基于上述，所述雨天限值的获得方法为：设置分析单元和报警单元；Based on the above, the method for obtaining the rainy day limit value is: setting an analysis unit and an alarm unit;
所述分析单元，获取所述监测模块实时采集并存储的车站内各个轨道的主轨电压值，筛选出雨天模式下的主轨电压值；The analysis unit obtains the main rail voltage values of each track in the station collected and stored in real time by the monitoring module, and filters out the main rail voltage values in the rainy weather mode;
所述报警单元，遍历每个轨道设备从当前时刻至前W天的雨天模式下的主轨电压值，按照大小顺序将该主轨电压值进行排序，作为第一主轨电压值序列；The alarm unit traverses the main rail voltage values of each rail device from the current moment to the previous W days in the rainy day mode, and sorts the main rail voltage values in order of magnitude, as the first main rail voltage value sequence;
统计所述第一主轨电压值序列的总数据个数，去除所述第一主轨电压值序列两端占所述第一主轨电压值序列的总数据个数10%的数据，剩余的主轨电压值作为第二主轨电压值序列；Count the total number of data of the first main rail voltage value sequence, remove the data that accounts for 10% of the total data number of the first main rail voltage value sequence at both ends of the first main rail voltage value sequence, and the remaining the main rail voltage value as the second main rail voltage value sequence;
统计所述第二主轨电压值序列的总数据个数，从所述第二主轨电压值序列的两端，抽取占所述第二主轨电压值序列的总数据个数10%的数据，作为参考值，计算主轨电压报警的雨天限值。Counting the total number of data of the second main rail voltage value sequence, and extracting data that accounts for 10% of the total data number of the second main rail voltage value sequence from both ends of the second main rail voltage value sequence , as a reference value, to calculate the rain limit of the main rail voltage alarm.
本发明相对现有技术具有突出的实质性特点和显著的进步，具体的说，本发明提供了一种轨道电路报警限值调整方法，若车站的主轨电压下降的轨道数目占车站总轨道数目的比例大于预设百分比，所述控制单元则判定车站轨道电路的主轨电压报警进入雨天模式，将主轨电压的报警限值调整为雨天限值；否则，所述控制单元则判定车站轨道电路的主轨电压报警进入正常模式，将主轨电压的报警限值调整为正常限值；本发明实时动态更新主轨电压的报警限值，从而大大减少雨天轨道电路误报警概率，进而减轻了车站工作人员工作量。Compared with the prior art, the present invention has outstanding substantive features and significant progress. Specifically, the present invention provides a method for adjusting the alarm limit value of a track circuit. If the ratio is greater than the preset percentage, the control unit determines that the main rail voltage alarm of the station track circuit enters the rain mode, and adjusts the alarm limit of the main rail voltage to the rainy weather limit; otherwise, the control unit determines that the station track circuit The main rail voltage alarm enters the normal mode, and the alarm limit value of the main rail voltage is adjusted to the normal limit value; the present invention dynamically updates the alarm limit value of the main rail voltage in real time, thereby greatly reducing the false alarm probability of the track circuit in rainy days, thereby reducing the station Staff workload.
附图说明Description of drawings
图1是本发明的结构示意主要流程图。Fig. 1 is the main flow chart showing the structure of the present invention.
具体实施方式Detailed ways
下面通过具体实施方式，对本发明的技术方案做进一步的详细描述。The technical solutions of the present invention will be further described in detail below through specific embodiments.
实施例1Example 1
如附图1所示，一种轨道电路报警限值调整方法，设置监测模块和控制单元，包括以下步骤：As shown in Figure 1, a method for adjusting the alarm limit value of a track circuit, setting a monitoring module and a control unit, includes the following steps:
所述监测模块实时采集并存储车站内各个轨道的主轨电压值；The monitoring module collects and stores the main rail voltage value of each track in the station in real time;
若实时采集到的主轨电压值的下降幅度在预设范围内，且车站的主轨电压下降的时间小于预设时间值m；则所述控制单元判定车站的主轨电压为下降状态；If the drop range of the main rail voltage value collected in real time is within the preset range, and the time for the main rail voltage to drop at the station is less than the preset time value m; then the control unit determines that the main rail voltage of the station is in a falling state;
若车站的主轨电压下降的轨道数目占车站总轨道数目的比例大于预设百分比，所述控制单元则判定车站轨道电路的主轨电压报警进入雨天模式，将主轨电压的报警限值调整为雨天限值；If the ratio of the number of rails whose main rail voltage drops in the station to the total number of rails in the station is greater than the preset percentage, the control unit determines that the main rail voltage alarm of the station rail circuit has entered the rain mode, and adjusts the alarm limit of the main rail voltage to Rain limit;
否则，所述控制单元则判定车站轨道电路的主轨电压报警进入正常模式，将主轨电压的报警限值调整为正常限值。Otherwise, the control unit determines that the main rail voltage alarm of the station track circuit enters the normal mode, and adjusts the alarm limit of the main rail voltage to the normal limit.
具体的，所述预设时间值m为5分钟至15分钟；所述预设时间值m的最优值为10分钟。所述预设百分比为60%至80%，所述预设百分比的最优值为70%。例如，70%以上轨道电路在10分钟内主轨电压值都下降了，则认为短时间内车站大面积发生轨道电路主轨电压下降，此车站下雨或者大面积水浸。Specifically, the preset time value m is 5 minutes to 15 minutes; the optimal value of the preset time value m is 10 minutes. The preset percentage is 60% to 80%, and the optimal value of the preset percentage is 70%. For example, if more than 70% of the track circuits have dropped the main rail voltage value within 10 minutes, it is considered that the main rail voltage of the track circuit has dropped in a large area in the station in a short period of time, and the station has rained or flooded in a large area.
实施例2Example 2
本实施例给出了判定车站的主轨电压是否为下降状态的具体实施方式，具体包括：This embodiment provides a specific implementation method for determining whether the main rail voltage of a station is in a falling state, including:
步骤1，遍历车站内所有轨道电路的主轨电压值，读取所述主轨电压值从当前时刻至前5分钟的数据；Step 1, traverse the main rail voltage values of all track circuits in the station, and read the data of the main rail voltage values from the current time to the first 5 minutes;
步骤2，所述控制单元对从当前时刻至前5分钟的数据求取平均值，获得第一平均值；将预设正常值与所述第一平均值的差值除以所述预设正常值，获得第一下降幅度；Step 2, the control unit averages the data from the current time to the previous 5 minutes to obtain a first average value; divides the difference between the preset normal value and the first average value by the preset normal value. value, get the first drop rate;
1分钟之后，再次对从当前时刻至前5分钟的数据求取平均值，获得第二平均值；将预设正常值与所述第二平均值的差值除以所述预设正常值，获得第二下降幅度；After 1 minute, average the data from the current moment to the previous 5 minutes to obtain a second average value; divide the difference between the preset normal value and the second average value by the preset normal value, get a second drop;
以此类推，获得第三下降幅度、第四下降幅度和第五下降幅度；By analogy, the third, fourth, and fifth declines are obtained;
步骤3，若所述第一下降幅度、所述第二下降幅度、所述第三下降幅度、所述第四下降幅度和所述第五下降幅度，均在预设范围内且依次增大；Step 3, if the first drop range, the second drop range, the third drop range, the fourth drop range, and the fifth drop range are all within a preset range and increase sequentially;
同时，所述第一平均值与第五平均值的差值除以所述第五平均值的值为0.2至0.3；Meanwhile, the difference between the first average value and the fifth average value divided by the fifth average value is 0.2 to 0.3;
则所述控制单元判定车站处于下雨或者水浸状态，主轨电压为下降状态。Then the control unit determines that the station is in a raining or flooding state, and the main rail voltage is in a falling state.
具体的，所述预设正常值为360mv，所述预设范围为0.22至0.3。轨道电路主轨电压在轨道水浸受潮时变化非常明显，变化幅度下降幅度一般在20%-30%，例如：zpw2000主轨电压正常情况下值在360mv左右，水浸时会下降到250mV到280mV之间。Specifically, the preset normal value is 360mv, and the preset range is 0.22 to 0.3. The main rail voltage of the track circuit changes very significantly when the track is flooded with moisture, and the range of change is generally 20%-30%. For example, the main rail voltage of the zpw2000 is normally around 360mv, but it will drop to 250mV to 280mV when flooded. between.
实施例3Example 3
本实施例与实施例1的区别在于：本实施例给出了一种雨天限值的获得的具体实施方式，包括：设置分析单元和报警单元；The difference between this embodiment and Embodiment 1 is that: this embodiment provides a specific implementation for obtaining the rainy weather limit value, including: setting an analysis unit and an alarm unit;
所述分析单元，获取所述监测模块实时采集并存储的车站内各个轨道的主轨电压值，筛选出雨天模式下的主轨电压值；轨道电路主轨电压采集频度为每秒一个测试值，每天每个轨道电路设备主轨电压存储的数据量为24*3600个数据值；The analysis unit obtains the main rail voltage values of each track in the station collected and stored in real time by the monitoring module, and filters out the main rail voltage values in the rainy day mode; the frequency of the main rail voltage collection of the track circuit is one test value per second , the amount of data stored in the main rail voltage of each track circuit device every day is 24*3600 data values;
所述报警单元，遍历每个轨道设备从当前时刻至前15天的雨天模式下的15*24*3600个主轨电压值，按照大小顺序将该主轨电压值进行排序，作为第一主轨电压值序列；The alarm unit traverses the 15*24*3600 main rail voltage values of each rail device from the current moment to the previous 15 days in the rainy day mode, sorts the main rail voltage values in order of magnitude, and takes them as the first main rail. sequence of voltage values;
统计所述第一主轨电压值序列的总数据个数，去除所述第一主轨电压值序列两端占所述第一主轨电压值序列的总数据个数10%的数据，剩余的主轨电压值作为第二主轨电压值序列；剔除这些排序后值中最大的10%和最小10%，以排除数据的干扰；Count the total number of data of the first main rail voltage value sequence, remove the data that accounts for 10% of the total data number of the first main rail voltage value sequence at both ends of the first main rail voltage value sequence, and the remaining The main rail voltage value is used as the second main rail voltage value sequence; the largest 10% and the smallest 10% of these sorted values are eliminated to exclude data interference;
统计所述第二主轨电压值序列的总数据个数，从所述第二主轨电压值序列的两端，抽取占所述第二主轨电压值序列的总数据个数10%的数据，作为参考值，计算主轨电压报警的雨天限值；对所述第二主轨电压值序列较大值的一端的10%的数据求平均值，作为主轨电压报警的上限值；对所述第二主轨电压值序列较小值的一端的10%的数据求平均值，作为主轨电压报警的下限值。更新雨天模式下，车站内主轨电压值的报警的上限值和下限值。Counting the total number of data of the second main rail voltage value sequence, and extracting data that accounts for 10% of the total data number of the second main rail voltage value sequence from both ends of the second main rail voltage value sequence , as a reference value, calculate the rainy weather limit of the main rail voltage alarm; average 10% of the data at the larger end of the second main rail voltage value sequence, as the upper limit of the main rail voltage alarm; 10% of the data at one end of the second main rail voltage value sequence with the smaller value is averaged to serve as the lower limit value of the main rail voltage alarm. Update the upper and lower alarm limits of the main rail voltage value in the station in rainy weather mode.
具体的，W的值可以取15至30，由于轨道电压在正常模式或者雨天模式时特性相对稳定，每种模式下15天到30天的数据量是相对合适的样本数目，数据量太小的话，获得的结果不准确，数据量太大的话计算机负担较重，并且对学习结果准确度没有太大影响。Specifically, the value of W can be 15 to 30. Since the characteristics of the rail voltage are relatively stable in the normal mode or the rainy mode, the data volume of 15 days to 30 days in each mode is a relatively suitable number of samples. If the data volume is too small , the obtained results are inaccurate. If the amount of data is too large, the computer will be heavily burdened, and the accuracy of the learning results will not be greatly affected.
最后应当说明的是:以上实施例仅用以说明本发明的技术方案而非对其限制；尽管参照较佳实施例对本发明进行了详细的说明，所属领域的普通技术人员应当理解：依然可以对本发明的具体实施方式进行修改或者对部分技术特征进行等同替换；而不脱离本发明技术方案的精神，其均应涵盖在本发明请求保护的技术方案范围当中。Finally it should be noted that: the above embodiment is only used to illustrate the technical scheme of the present invention and not to limit it; Although the present invention has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should understand: The specific embodiments of the invention are modified or some technical features are equivalently replaced; without departing from the spirit of the technical solutions of the present invention, all of them should be included in the scope of the technical solutions claimed in the present invention.
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